Check for SSE 3, SSSE 3 and POPCNT in CheckCPU(), and SSE, SSE2 in MathLib_Init().
This should fix all crash cases caused by launching the game on unsupported CPU's.
* Replaced the boolean 'fatal' parameter with a error code parameter, anything non-null will prompt a message (fatal) and terminate the process with given error code.
* Fixed bug where the global ostreamsink for spdlog did NOT get cleared in 'SQVM_PrintFunc' when cvar 'sq_showvmoutput' was < 3. Moved to global scope.
* Added error message for when detouring the process has failed, with the error code.
* Only call 'Plat_GetProcessUpTime()' once per log, (improves performance and fixes bug where the error message box would show a different time stamp than what is logged into the console or file).
* All TIER0 loggers only log to notify and console when the SDK engine has fully initialized and detoured all functions.
Implement VFTable's to interface with engine (for the most part mapped out, only the new VPK methods needs further reversing).
This exposes a good majority of the FileSystem implementation of the engine, to the SDK.
CUtlVector containing callbacks (you can have several callbacks for each ConVar).
also, in 'ConVar::InternalSetValue' Valve and Respawn run V_atod (atof) on function param 'pszValue', but they also check if input param 'pszValue' is a nullptr (which in this case, 'pszNewValue' gets set to an empty string), but yet they deref 'pszValue' (nullptr or not) in 'SetColorFromString' and V_atod, is this correct behavior?
For now I swapped these out with 'pszNewValue' for the very rare event the string happens to be nullptr.
* Move render utils to dedicated file.
* Implement more render/mesh utils.
* Added structure for OverlayTriangle_t, OverlaySweptBox_t and OverlayCapsule_t.
OverlayCapsule_t has been modified to accommodate the size in r5 (2 new vectors).
SourceSDK mathlib port with light modifications.
Renamed Vector to Vector3D (to avoid confusion with std::vector (declared as vector) and Vector2D/Vector4D).
Moved logging functions to dbg.h (tier0) and export them from the dll.
Added additional functions for checking bad pointers (debug only!).
Reduced output code size.
* Improve ConVar class (fixed several bugs).
* Hook CEngineAPI::ModInit() and set m_bRestrictServerCommands from there.
* Disable unused ConVar's and purge unused ConCommands in CEngineAPI::ModInit() for dedicated.
* Small relocation of malloc related signatures.
